I would worry more about the container leaking after getting brittle from baked in the sun too many times.
I don't think your honda V6's are too sensitive about oil, and maybe the little ford turbo is trying harder to find a reason to fail, but a half quart of almost anything similar to motor oil is fine to top up IMO for the last bit of a OCI, or in a pinch.
I don't think your honda V6's are too sensitive about oil, and maybe the little ford turbo is trying harder to find a reason to fail, but a half quart of almost anything similar to motor oil is fine to top up IMO for the last bit of a OCI, or in a pinch.